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  1. or download this
    C:\> perl -MO=Deparse -e "while (1) { print 1; }"
    
    for (;;) {
    ...
    }
    
    -e syntax OK
    
  2. or download this
    $ perl -MO=Deparse -le 'for ( my $i = 0; $i < 10; $i++ ) { print 1 }'
    -e syntax OK
    
    ...
    continue {
        ++$i
    }